Climatological Report (Daily)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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CDCA42 TJSJ 131921
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
321 PM AST WED AUG 13 2025
...................................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 13 2025...
VALID TODAY AS OF 0300 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1898 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 89 1:59 PM 93 1981 89 0 90
2019
MINIMUM 81 6:39 AM 71 1960 78 3 81
AVERAGE 85 84 1 86
PRECIPITATION (IN)
TODAY T 1.79 1960 0.20 -0.20 0.51
MONTH TO DATE 2.51 2.44 0.07 2.71
SINCE JUN 1 12.09 13.12 -1.03 10.88
SINCE JAN 1 36.49 32.09 4.40 43.76
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 20 18 2 21
MONTH TO DATE 253 234 19 276
SINCE JUN 1 1366 1340 26 1562
SINCE JAN 1 3690 3473 217 4074
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 8.1
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88
LOWEST 68
AVERAGE 78
..........................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 94 1995
MINIMUM TEMPERATURE (F) 78 71 1960
SUNRISE AND SUNSET
AUGUST 13 2025........SUNRISE 6:05 AM AST SUNSET 6:52 PM AST
AUGUST 14 2025........SUNRISE 6:06 AM AST SUNSET 6:51 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$